Looking on the internet deeply has found these results:

might have occurred is the most popular phrase on the web.

about any changes might have occurred 10 results on the web	might have occurred 195,900 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Apr 3, 2009 ... might have occurred = could have occurred / may have occurred / it is possible that it occurred. The sentence means it is possible that someone ... Sep 24, 2015 ... what misfortune occurs at the evening reception at the ministry ? infer how this might have occurred. . Asked by abood z #464546 a month ago ... ... actions that could occur, might occur, should occur, would occur, could have occurred, might have occurred, should have occurred, and would have occurred. The line is sometimes blurred as historians may invent more detailed timelines as illustrations of their ideas about the types of changes that might have occurred.

about any changes might have occurred

10 results on the web

might have occurred

195,900 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Apr 3, 2009 ... might have occurred = could have occurred / may have occurred / it is possible that it occurred. The sentence means it is possible that someone ...
Sep 24, 2015 ... what misfortune occurs at the evening reception at the ministry ? infer how this might have occurred. . Asked by abood z #464546 a month ago ...
... actions that could occur, might occur, should occur, would occur, could have occurred, might have occurred, should have occurred, and would have occurred.
The line is sometimes blurred as historians may invent more detailed timelines as illustrations of their ideas about the types of changes that might have occurred.